From 0ba80c88e86f2adca4f557522aa4e3395ad01852 Mon Sep 17 00:00:00 2001
From: Mitchell Hashimoto <mitchell.hashimoto@gmail.com>
Date: Mon, 3 Jun 2013 15:31:28 -0700
Subject: [PATCH] packer/plugin: Implement Builder.Cancel

---
 packer/plugin/builder.go | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/packer/plugin/builder.go b/packer/plugin/builder.go
index b1a6855e5..5113b459c 100644
--- a/packer/plugin/builder.go
+++ b/packer/plugin/builder.go
@@ -32,6 +32,12 @@ func (b *cmdBuilder) Run(ui packer.Ui, hook packer.Hook) packer.Artifact {
 }
 
 func (b *cmdBuilder) Cancel() {
+	defer func() {
+		r := recover()
+		b.checkExit(r, nil)
+	}()
+
+	b.builder.Cancel()
 }
 
 func (c *cmdBuilder) checkExit(p interface{}, cb func()) {